CN101675262A - Clutch assembly - Google Patents
Clutch assembly Download PDFInfo
- Publication number
- CN101675262A CN101675262A CN200880005912A CN200880005912A CN101675262A CN 101675262 A CN101675262 A CN 101675262A CN 200880005912 A CN200880005912 A CN 200880005912A CN 200880005912 A CN200880005912 A CN 200880005912A CN 101675262 A CN101675262 A CN 101675262A
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- China
- Prior art keywords
- clutch assembly
- locking
- locking body
- lockout member
- synchronizing ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000014509 gene expression Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
- F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/02—Arrangements for synchronisation, also for power-operated clutches
- F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
- F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
- F16D2023/0618—Details of blocking mechanism comprising a helical spring loaded element, e.g. ball
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/19219—Interchangeably locked
- Y10T74/19284—Meshing assisters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
- Lock And Its Accessories (AREA)
Abstract
A clutch assembly for connecting a shaft to a rotary member mounted on said shaft in a rotationally fixed manner comprises: a sliding sleeve which is rotationally fixed to the shaft, is axially slidably mounted on said shaft and is provided with a first gearing, A clutch body which is rotationally fixed to the rotary member and provided with a second gearing which can mesh with the first gearing to connect the shaft and the rotary member in a rotationally fixed manner. And, a locking synchronisation unit having a synchroniser ring with a friction surface the ring permitting the speeds of the shaft and the rotary member to be synchronised before the meshing of the first and second gearings. The locking synchronisation unit further comprises a locking member which is coupled to the sliding sleeve by a detent groove and to the synchroniser ring in the rotational direction (D) by a pair of locking surfaces. The pair of locking surfaces are situated between the locking member and a synchroniser member, the latter being coupled to the locking member in the axial direction (A) and to the synchroniser ring in the rotational direction (D).
Description
Technical field
The present invention relates to a kind of clutch assembly, be used to make thereon rotary member of axle and arrangement, be connected antitorquely as idler gear, wherein clutch assembly has: the gear shift sleeve, and it is connected with axle antitorquely and settles and be equipped with first gear teeth in the axial direction movably with respect to axle; Clutch body, it is connected with rotary member antitorquely and is equipped with second gear teeth, be connected with rotary member in order to make axle antitorquely, these second gear teeth can with first gear teeth meshing; And locking-synchronizer, it has the synchronizing ring that has rubbing surface, by means of this synchronizing ring, before first and second gear teeth meshing, the rotating speed of axle and rotary member can be synchronous, wherein locking-synchronizer also has locking body, this locking body be connected by locking slot with the gear shift sleeve and with synchronizing ring on sense of rotation by locking in the face of being connected.
Background technique
DE 10 2,005 025 569 A1 disclose a kind of such clutch assembly.
Such clutch assembly is applied in the countershaft transmission that is used for Motor Vehicle.At this, countershaft transmission is designed to have the step change transmission of a plurality of Transmission gear.Distributed a gear train for each Transmission gear, this gear train has fixed gear and idler gear.One of them axle that idler gear rotatably is placed in speed changer is respectively gone up and can be connected (so that cutting Transmission gear) with axle by means of clutch, and can separate (so that disengaging Transmission gear) with axle.
Clutch is typically designed to timing clutch at present, in this clutch, before the connection of setting up the form fit between axle and the rotary member, makes the rotating speed of axle and rotary member synchronized with each other.In addition, timing clutch is typically designed to locking-timing clutch at present, and in this clutch, the effect of locking mechanism is: have only when the rotating speed that makes axle and rotary member is synchronized with each other, could realize the engagement of the gear teeth of gear shift sleeve and clutch body subsequently.
Present employed locking mechanism has the locking gear teeth on the excircle of synchronizing ring.At this, synchronizing ring restrictedly is placed in axle movably and goes up (perhaps be placed on the guide pin bushing that is fixed on the axle, this guide pin bushing is also referred to as sync-body).On the release position, can guide the gear shift sleeve gear teeth, so that set up and being connected of the form fit of clutch body by the locking gear teeth of synchronizing ring.On locked position of coupler, synchronizing ring is reversed like this, thereby has prevented that the gear shift sleeve from moving on the clutch body in the axial direction.The locked position of coupler of synchronizing ring is realized like this, be synchronizing ring because employed axial active force and realize friction engagement, driving synchronizing ring on the sense of rotation and and then synchronizing ring driven (upset) on the locked position of coupler thus with the clutch body of being attached troops to a unit (or another rubbing surface of attaching troops to a unit).Have only when synchronization, just frictional force is reduced to such level, the active force when promptly synchronizing ring is owing to gearshift can turn round, thereby can promote the gear shift sleeve by the gear teeth that are turned back on the release position of synchronizing ring subsequently.
Such synchronously in, the manufacture cost of synchronizing ring is higher relatively.
Proposed a kind of locking mechanism in DE 10 2,005 025 569 A1 that beginning is mentioned, it is achieved under the situation of applying pressure spare.
In the timing clutch assembly, often be provided with this in other words saddle of this pressure piece, so that the stop on neutral position of gear shift sleeve.In file DE 10 2,005 025 569 A1, proposed, synchronizing ring has been designed on the exterior periphery that does not have the locking gear teeth.Otherwise, on the inner circumferential of synchronizing ring, be provided with a plurality of sphenoid surface, and this sphenoid surface distributed to the sphenoid surface of corresponding pressure piece.
When applying the active force in when gearshift, the gear shift sleeve is attempting making pressure piece shifting out and simultaneously synchronizing ring is being pressed in the axial direction (beginning synchronously) on the rubbing surface in the radial direction from locking slot.At this, synchronizing ring twists, and meshes realizing until sphenoid surface, thereby makes sphenoid surface react on the extrusion radially of pressure piece.Therefore can not continue axially mobile gear shift sleeve and come this gear shift sleeve of locking with method by this way.Have only when the axle and the synchronization of idler gear, could be based on the frictional force that decreases, make synchronizing ring reverse to the active force on the gear shift sleeve by means of axial action, thus make the pressure piece can be in inwardly extrusion in the radial direction.Therefore, can continue mobile gear shift sleeve in the axial direction, so that mesh with clutch body.
DE 29 15 965 C2 disclose a kind of similar locking mechanism that is used for timing clutch.
Yet in such timing clutch assembly, the manufacture cost of synchronizing ring is also higher relatively.
Summary of the invention
Therefore the objective of the invention is to, propose a kind of clutch assembly, in this clutch assembly, make inexpensively under the situation that synchronizing ring can be optimized in the mode of operation of locking mechanism.
This purpose realizes in the described clutch assembly of beginning like this, and promptly locking is in the face of being formed between this locking body and the lockout member, and this lockout member is connected with locking body in the axial direction and is connected with synchronizing ring on sense of rotation.
In clutch assembly according to the present invention, synchronizing ring can not be designed to not self the locking gear teeth on the circumference externally as prior art.Also synchronizing ring can be designed to not have other sphenoid surface in addition.Synchronizing ring is connected with lockout member on sense of rotation.Lockout member is faced by locking again and is meshed with locking body on sense of rotation.
Therefore, synchronizing ring can structurally design especially simply, and this is because can make based on simple manufacturing method (making, make sintered component etc. by sheet metal).
In addition, locking body and lockout member can be distinguished fairly simplely and design, thereby it can be made inexpensively.
This purpose comes fully to realize thus.
According to a particularly preferred embodiment, lockout member is being settled movably with respect to the guide pin bushing that is connected with axle restricted ground between release position and locked position of coupler on the sense of rotation, thereby makes lockout member prevent that on locked position of coupler locking body from shifting out from locking slot and therefore prevented moving axially of gear shift sleeve.
But may also be considered that generally promptly synchronizing ring restrictedly is settled movably with respect to guide pin bushing.Guide pin bushing and lockout member are designed to make lockout member to move around between locked position of coupler and release position, and this can realize the further simplification to the moulding of synchronizing ring.
According to another preferred embodiment, synchronizing ring has groove, and the portion's section that is provided with lockout member in the inside of this groove is connected on sense of rotation with synchronizing ring being used for.
In this embodiment, between synchronizing ring and lockout member, carry out in being connected on the sense of rotation by the groove on the synchronizing ring.This groove can be made fairly simplely.Portion's section that lockout member is engaged in the groove can be a protuberance, yet also can be the portion's section that is designed to the lockout member of compact body.
Particularly preferably be, the groove design of synchronizing ring is axial groove.This can realize the further simplification of manufacture method.Yet the groove of synchronizing ring also can by two radially or the lug boss that axially stretches out constitute, portion's section of lockout member is engaged between these two lug bosses.
Can consider inversely that also promptly synchronizing ring has protuberance, the groove that this protuberance engages into lockout member is connected on sense of rotation with lockout member being used for.
According to another preferred embodiment, locking body leads on the gear shift sleeve in the axial direction.
This embodiment is regarded as independently inventing, and does not rely on whether provide lockout member.
At this preferably, the axial guiding of locking body is not only carried out when locking body engages in the locking slot, and locking body is radially extruded at the gear shift sleeve, thereby also can carry out when making locking body no longer engage in the locking slot.
Generally speaking, can obtain the obvious more stable guiding of the parts of clutch assembly thus.
Particularly advantageously at this be, the gear shift sleeve has groove radially, locking body guiding axially in this groove radially.
At this, groove radially can constitute by the groove on the tooth of first gear teeth.This axial, the direction recess on the inboard of gear shift sleeve can be made structurally fairly simplely.
According to another preferred embodiment, locking body has at least one guide protrusion part, and this guide protrusion part engages in the teeth groove of first gear teeth to be used for carrying out axial guiding on the gear shift sleeve.
At this, guide protrusion part can extend out in the portion's section by locking body in the radial direction, the locking slot engagement of this section and gear shift sleeve.
Can be implemented in the axial guiding on the gear shift sleeve by this way, and do not need on each tooth of the gear teeth of gear shift sleeve, to be provided with bigger groove.Generally speaking, the gear shift sleeve can be designed as aspect robustness immaculate basically.
In addition generally speaking preferably, locking body is flexibly being applied prestressing force with respect to axle or guide pin bushing in the radial direction and is being pressed in the locking slot.
At this, apply prestressing force and for example can realize by means of spring, this spring is arranged between locking body and axle or the guide pin bushing.
According to a preferred embodiment, locking body is flexibly being applied prestressing force with respect to lockout member in the radial direction and is being pressed in the locking slot.
Because lockout member is placed on the guide pin bushing always, therefore do not need to take other measure on guide pin bushing for locking body flexibly being applied prestressing force.
According to a particularly preferred embodiment, locking body has groove to be used to hold spring part, and this spring part is used for realizing flexibly applying prestressing force.
By this way can be with spring part, for example the helical spring fit on and the guiding that is in operation safely simply.
Particularly advantageously be that also locking body and lockout member are designed to pre-assembled unit.
Can simplify assembling significantly thus.
Particularly advantageous is that pre-assembled unit has spring assembly to be used for that locking body is flexibly applied prestressing force with respect to lockout member.
In this embodiment, locking body, lockout member and spring assembly have constituted pre-assembled unit, and this unit can be encased in the guide pin bushing with assembly fee seldom.
In addition generally speaking preferably, locking body and/or lockout member are designed to sintered component.
Can realize manufacturing with low cost by this way.
Preferably, synchronizing ring also can be designed as sintered component.
According to a particularly preferred embodiment, lockout member is designed to bent plate spare.
In this embodiment, lockout member can be used as a kind of guard ring that is used for locking body and is used for spring assembly in case of necessity.
Locking body also can be designed as plate bent plate spare in other words.Also can consider in addition synchronizing ring is designed to plate.
Also can consider locking body and/or lockout member are designed to forging.
In addition generally speaking preferably, clutch assembly has a plurality of locking-synchronizers, and these locking-synchronizers have a locking body and a lockout member respectively and arrange on the circumference of clutch assembly dispersedly.
Utilization can obtain one of following advantage according to each embodiment at least according to clutch assembly of the present invention:
-synchronizing ring can be made basically more simply and with more low-cost; Synchronizing ring can also design firmlyer.Can reduce installing space.
-because synchronizing ring does not need the flange that radially protrudes, be used for the locking gear teeth, therefore the length of the gear teeth of guide pin bushing (guiding the gear shift sleeve on this guide pin bushing regularly) can design longlyer in the axial direction, has improved the guiding (transverse bending still less) of gear shift sleeve thus; In addition, the gear shift sleeve guides to clutch body against tooth (should define the axial command range of gear shift sleeve in the face of clutch body against tooth) no deadlock.For coming transmitting torque, can also improve robustness thus by synchronizing ring.
-locking body can be designed to identical for different locking-synchronizers with lockout member.Especially, it also can be designed to identical for the both sides of clutch assembly.In other words, locking body and lockout member with respect to cross section and/or with respect to the longitudinal section can be designed to the symmetry.
-in addition, synchronizing ring for single awl synchronously with for many awls are synchronous, can be designed to identical.
-locking mechanism is decoupling from engaging mechanism, thereby can not consider that the locking angle freely selects to be used for to engage into the point finning of the gear shift sleeve of clutch body.Thus, particularly, can improve the convenience of engagement by sharper tooth matching angle.
-can realize the lifting (for example by lifting-sphenoid surface to) of synchronizing ring fairly simplely.Can reduce drag torque.
The engagement gear teeth of-gear shift sleeve can design in one plane, and this has reduced the manufacture cost of gear shift sleeve.
-with inclined design under the situation on the locking slot, can produce suitable influence to the progress of releasing process especially.Therefore can avoid so-called " the dual engagement " that when the gear shift sleeve engaged into clutch body in advance before rotating speed is equal, can occur.Can produce the system of bottom locking by the locking slot (having the inclined-plane) of this classification, the wheel that quickens again can be braked by this system.Can reduce cold scratch and vibration scratch.
-can avoid the sediments on first gear teeth of gear shift sleeve to contact, as in the situation of synchronizing ring with locking-gear teeth with synchronizing ring.
-synchronizing ring can be by centering with being connected of lockout member.Can cancel in the central diameter on the synchronizing ring and on guide pin bushing in case of necessity.
Certainly, feature aforesaid and that also will describe in the back not only can be applied in the given separately combination, and can be applied in other combination or in independent situation, and does not deviate from framework of the present invention.
Description of drawings
Embodiments of the invention shown in the drawings and being described in detail in the following description.Shown in the figure:
Fig. 1 schematically shows the sectional arrangement drawing that passes according to an embodiment of clutch assembly of the present invention;
Fig. 2 shows along the sectional view of line II-II shown in Figure 1;
Fig. 3 shows the clutch assembly shown in Figure 1 on locked position of coupler;
Fig. 4 shows the clutch assembly shown in Figure 2 on locked position of coupler;
Fig. 5 shows the release clutch assembly shown in Figure 1 of moment;
When Fig. 6 shows the clutch assembly release shown in Figure 2 of release moment;
Fig. 7 shows the clutch assembly shown in Figure 1 under gearshift;
Fig. 8 shows the clutch assembly shown in Figure 2 under gearshift;
Fig. 9 shows the perspective cross-sectional view according to another embodiment of clutch assembly of the present invention;
Figure 10 shows the perspective cross-sectional view according to another embodiment of clutch assembly of the present invention;
Figure 11 shows the perspective cross-sectional view according to another embodiment of clutch assembly of the present invention;
Figure 12 shows the schematic representation of the preassembled locking unit that is connected with portion's section of synchronizing ring;
Figure 13 shows along the sectional view of line XIII-XIII shown in Figure 12;
Figure 14 shows the optional combination of the preassembled locking unit with synchronizing ring;
Figure 15 shows detailed view XV shown in Figure 14;
Figure 16 shows the perspective view according to the locking body of clutch assembly of the present invention;
Figure 17 shows the perspective view according to an optional embodiment of the locking body of clutch assembly of the present invention;
Figure 18 shows the schematic cross-sectional view according to another embodiment of clutch assembly of the present invention;
Figure 19 shows the schematic representation according to the locking slot of the modification of the gear shift sleeve of clutch assembly of the present invention;
Figure 20 show according to another embodiment of clutch assembly of the present invention with the corresponding sectional view of Fig. 2;
Figure 21 shows along the sectional view of line XXI-XXI shown in Figure 20;
Figure 22 shows the schematic representation according to another embodiment of clutch assembly of the present invention;
Figure 23 show according to another embodiment of clutch assembly of the present invention with the corresponding diagram of Fig. 2;
Figure 24 shows along the sectional view of line XXIV-XXIV shown in Figure 23;
Figure 25 show according to another embodiment of clutch assembly of the present invention with the corresponding diagram of Fig. 2;
Figure 26 shows the schematic representation that is used for according to the synchronizing ring of clutch assembly of the present invention;
Figure 27 shows the schematic representation that is used for according to another embodiment of the synchronizing ring of clutch assembly of the present invention; And
Figure 28 shows the schematic representation that is used for according to another embodiment of the synchronizing ring of clutch assembly of the present invention.
Embodiment
The speed changer that in Fig. 1 and 2, is used for Motor Vehicle prevailingly with 10 expressions.
In Fig. 1, only schematically show another idler gear 22 '.
Certainly, gear arrangement shown, that be designed in the vehicle vertically assembling is only represented an example.The present invention equally also can be applied in speed changer with other layout (for example be used for the assembling of front portion-laterally or as three shaft transmissions).
First embodiment according to clutch assembly of the present invention represents with 30 in Fig. 1 prevailingly.
As seeing in Fig. 1, gear shift sleeve 34 is connected 66 by sphenoid surface on axial direction A with locking body 50, and this sphenoid surface is to having constituted the part of locking slot 52.Can pick out among this external Fig. 2, locking body 50 and lockout member 54 are connected to each other to 70 by second sphenoid surface on sense of rotation D.First sphenoid surface is expressed as stop angle 68 and can be for example from 30 ° to 70 ° scope below to 66 angle, particularly from 40 ° to 60 ° scope, and preferably from 50 ° to 55 ° scope.Second sphenoid surface between locking body 50 and lockout member 54 has also formed an angle to 70, and this angle is expressed as locking angle and can be from 30 ° to 70 ° scope, particularly from 40 ° to 60 ° scope below.
As in Fig. 2, seeing, in the lockout member on the guide pin bushing 32 54 restricted ground arrangement movably on sense of rotation D in lockout member accommodating part 74.More precisely, lockout member 54 can move between release position F of the neutral gear shown in Fig. 2-in other words and locked position of coupler S (see figure 4).Needed for this reason transition stroke is represented with 76 in Fig. 2.With 78 expressions, lockout member 54 is being resisted against on the stop surface on the sense of rotation stop surface of guide pin bushing 32 in Fig. 2.
The blocked part also can be between latch surfaces 70.
Working principle below with reference to the clutch assembly 30 shown in Fig. 3 to 8 couple of Fig. 1 and 2 is described in detail, wherein in Fig. 3 and 4, illustrated, when the rotating speed that does not reach between axle 24 and the idler gear 22 equates, blocking device is how to make locking gear shift sleeve 34 and prevent the continuous gear shift of vehicle, wherein Fig. 5 and 6 shows the releasing process of realizing when friction torque descends owing to synchronization, and wherein Fig. 7 and 8 shows the gearshift of clutch assembly, under this state, idler gear 22 and output shaft 24 are by the gear teeth 38,42 are joined to one another to form fit on sense of rotation D.
If from that the neutral gear shown in Fig. 1 and 2-release position goes out to send to start clutch assembly 30 in other words, so that idler gear 22 and output shaft 24 are coupled together, apply axial force 82 (active force) by gear shift sleeve 34 on gear shift sleeve 34 so, this axial force is pressed to gear shift sleeve 34 direction of idler gear 22.
Set out at first thus at this, promptly output shaft 24 and therefore guide pin bushing 32 with the parts that on sense of rotation, are connected to form fit with it, be that lockout member 54 and synchronizing ring 44 have first rotational speed omega
1, and idler gear 22 has the second different rotational speed omega
2
If gear shift sleeve 34 is pressed (this has produced shift sleeve barrel stroke 80) to the right in Fig. 3, then drive locking body 50 to 66 by first sphenoid surface, and also drive lockout member 54 in the axial direction, thereby seal face 64 axially is pressed to synchronizing ring 44 on the idler gear 22 by axial connection.At this, the rubbing surface 46,48 of taper is in the friction engagement state.For this reason, lockout member 54 is driven on sense of rotation D by synchronizing ring 44, (see figure 4) till it abuts on the stop surface 78.In this state, second sphenoid surface is in engagement to 70, thereby can not make locking body 50 to radially direction R is last to pressing down.Represent with 82 in Fig. 3 by the active force that gear shift sleeve 34 is applied.By first sphenoid surface 66 radial forces that are applied on the locking body 50 are represented with 84 in Fig. 3 and 4 thus, and the axial force that is applied to thus on the locking body 50 is represented with 86.The frictional force that is produced on to 46,48 in friction is schematically with 88 expressions, and the frictional force that is produced on to 70 at second sphenoid surface is schematically with 90 expressions.
Satisfied so-called barring condition in Fig. 3 and 4, it has prevented pressing down of locking body 50.This barring condition shown in clutch assembly in be the effect of stop angle 68, the effect of locking angle 70 and the effect of frictional behavior.In addition, blocking also depends on by friction certainly to 46,48 frictional force that applied 88.
If that is to say and make the rotating speed (ω that averages out to each other
2Approximate ω greatly
1), relatively little by rubbing surface so to 46,48 frictional force of being transmitted 88, thus make locking body 50 be pressed downward (Fig. 5) to 66 by sphenoid surface.In addition, therefore lockout member 54 is pushed back on the F of release position 70 by second sphenoid surface.Needed for this reason return force is schematically represented with 92 in Fig. 6.
In Fig. 6, can also pick out, even when locking body 50 is extruded fully, still between tooth Z2, Z3, provide the axially directed of locking body in the axial direction from locking slot 52.The degree of depth that is used for recess axially directed radial groove, that keep between these two tooth Z2, Z3 is schematically represented with 94 at Fig. 6.
After locking body 50 is extruded from locking slot 52 fully, just do not have again axial force transmission on synchronizing ring 44 yet.Gear shift sleeve 34 is in a kind of so-called " free flight stage ", and possible in this stage is that the rotating speed of output shaft 24 and idler gear 22 is different each other again.Yet this free flight stage can be designed to relatively short, and this is because limit by structure possible is, with the guiding setting of gear shift sleeve 34 on the unshowned outer gearing gear teeth of guide pin bushing 32 near clutch body 40.In addition, based on clutch assembly 30 according to structure of the present invention, the point finning of the gear teeth 38 can be designed point relatively, thereby clutch body 40 is engaged in the outer gearing gear teeth 42 soon.The gearshift that is realized is shown in Fig. 7 and 8 thus.
In the clutch assembly 30 described in Fig. 1 to 8, synchronizing ring 44 does not have the locking gear teeth.This (looking to 96 from the 3rd sphenoid surface that can select to preset) neither be necessary: the sphenoid surface that is used for realizing barring condition in synchronizing ring 44 designs.Needed sphenoid surface is to 66,70 only being arranged on those firm relatively parts, being between gear shift sleeve 34, locking body 50 and the lockout member 54.So synchronizing ring 44 needn't be transmitted very high blocking force and therefore can make inexpensively, for example makes sintered component.
Parts, be that lockout member 54 and locking body 50 also can be made simple parts, for example make sintered component, plate or forging.
The axial direction recess 53 or the locking slot 52 of packing in the gear shift sleeve 34 also can utilize instrument commonly used to make.
Below with reference to the variation of Fig. 9 to 28 pair of clutch assembly or optional embodiment be illustrated.All these embodiments are being consistent with the clutch assembly 30 shown in Fig. 1 to 8 aspect structure and the working principle prevailingly.Therefore, only difference is illustrated below.
Figure 9 illustrates the embodiment of a variation, the drive device 60 of lockout member ' be designed to groove (as under the situation of the embodiment shown in Fig. 1 to 8) wherein, and wherein synchronizing ring 44 ' drive device 62 ' be designed to protuberance radially, this protuberance be engaged to groove 60 ' in.In addition in this embodiment, protuberance 62 radially ' with synchronizing ring 44 ' the taper ring separate and make and be connected with this taper ring subsequently.
Figure 10 shows another optional embodiment, synchronizing ring 44 ' have synchronizing ring carrier 110 wherein, design fluted 62 in this carrier, and " (drive device), lockout member 54 " axial protuberance 60 " is engaged in this groove.
Figure 11 illustrates an embodiment, wherein locking body 50 " ', lockout member 54 " ' and spring assembly 56 " ' be designed to preassembled unit 112.
More precisely, the locking body 50 " ' stable always lockout member 54 that is placed in " with keeping ' in, and spring assembly 56 " ' be arranged in lockout member 54 " ' inside.This lockout member 54 " ' on also design protuberance 60 arranged " ', this protuberance is according to protuberance shown in Figure 10 60 " mode, be engaged to synchronizing ring 44 " ' groove 62 " ' in.
Figure 12 schematically shows preassembled unit 112 shown in Figure 11, wherein also shows in lockout member 56 " ' go up design have protuberance, this protuberance prevented locking body 50 " ' from lockout member 56 " ' come off.
Figure 13 shows along the sectional view of line XIII-XIII shown in Figure 12.As shown, lockout member 54 " ' can be designed as plate, however locking body 50 " ' can be designed as firm parts, for example be designed to sintered component.
Figure 14 shows the embodiment 30 shown in Figure 11 to 13 " ' a modification, wherein in preassembled unit 112
IV Lockout member 54
IVLast design has and has groove 60
IVAxial protuberance, synchronizing ring 44
IV Protuberance 62
IVBe engaged to (with similar under the situation of the embodiment shown in Fig. 1 to 8) in this groove.
Figure 15 shows the detailed view of XV part shown in Figure 14 and exemplarily shows and driving device 60
IV, 62
IVBetween big relatively contact ratio.
Figure 16 shows locking body 50
VAn embodiment.In view shown in Figure 16, can pick out locking body 50
VHave on axial direction A first sphenoid surface 114 that is provided with, this sphenoid surface has constituted first sphenoid surface to 66 part with facing with each other.Can also pick out locking body 50
VHave on sense of rotation D second sphenoid surface 116 that is provided with, this sphenoid surface has constituted second sphenoid surface respectively to 70 part with facing with each other.
Figure 17 illustrates locking body 50
VIA variation scheme, this locking body has the guide protrusion part 118 of extending at it respectively with facing with each other on axial direction A on the end that is provided with on the sense of rotation D, this lug boss on radial direction R to the upper lobes of locking body.
In guide protrusion part 118 is designed for and is engaged in the teeth groove of the engagement gear teeth 38, as its in Figure 18 shown in exemplarily.
Utilize this design proposal can improve axially directed stability significantly, this is that it is schematically illustrated in Figure 18 because produced guiding degree of depth increasing amount 119 on direction radially.
In this embodiment, all tooth Z of gear shift sleeve 34 are designed to have identical height, that is to say not exist tooth to shrink (Zahnruecknahme), thereby the internal diameter of gear shift sleeve 34 can be remained unchanged basically (exemplarily indicated in Figure 18) by internal diameter shown in broken lines as it.
Figure 19 shows locking slot 52
VIIThe embodiment of a variation.Locking slot 52
VIIHave on the one hand a sphenoid surface 122, this sphenoid surface has constituted first sphenoid surface to 66 part.Transition part from sphenoid surface 122 to the axially extended gear teeth 38 is provided with inclined-plane 124, and this inclined-plane has bevel angle 120, and this bevel angle is obviously littler than stop angle 68.Bevel angle 120 can be for example from 5 ° to 40 ° scope, particularly from 10 ° to 30 ° scope.
Utilize inclined-plane 124 can when release, produce the system of bottom locking.In other words just, synchronizing ring 44 still approximately is pressed on the idler gear 22, and the edge of locking body is pushed down along the inclined-plane.Therefore can prevent the acceleration again of idler gear 22 better.In other words, the free flight stage can be designed shortlyer.Yet preferably select bevel angle 120 like this, promptly can not trigger barring condition by this bevel angle.
Figure 20 shows according to clutch assembly 30 of the present invention
VAnother embodiment with the corresponding diagram of Fig. 2.Lockout member 54
VBe designed to bent plate spare.Locking body 50
VOn its inboard radially, have groove in other words recess 130 hold and guide springs device 56 being used to
V(in an illustrated embodiment particularly as helical spring).
Figure 21 shows along the sectional view of line XXI-XXI shown in Figure 20 and show can be how in synchronizing ring 44
VLast design drives device 62
V, this drive device is engaged to lockout member 54
VRecess in.
Figure 22 shows according to clutch assembly 30 of the present invention
VIAnother embodiment, wherein spring assembly 56
VIBe designed to a kind of cup spring or analog.
Figure 23 and 24 shows according to clutch assembly 30 of the present invention
VIIAnother optional embodiment, wherein basic structure and fundamental function and in the clutch assembly 30 shown in Figure 20 and 21
VIn similar.Yet in clutch assembly 30
VIIIn, lockout member 54
VIIBe not designed to plate, but be designed to firm parts (for example being designed to sintered component or forging).
Figure 25 shows according to clutch assembly 30 of the present invention
VIIIAnother embodiment, wherein, with as in the embodiment shown in Figure 22 similarly, with cup spring as spring assembly 56
VIIIUse.Certainly, under the situation of using cup spring, just needn't on the inboard radially of locking body 50, groove be set.
Figure 26 to 28 shows the different embodiment of synchronizing ring, and these embodiments are suitable for being applied in according in the clutch assembly of the present invention.These synchronizing ring with respect to the difference of prior art particularly in, each synchronizing ring does not have the locking gear teeth.The drive device partly is designed to protuberance 62 radially
IX, optionally be designed to axial groove 62
XOr axial protuberance 62
XICertainly, preferably, a plurality of shown drive devices arrange dispersedly that along the circumference of each synchronizing ring preferably, three drive device and arrange dispersedly along circumference.
Claims (17)
1. a clutch assembly (30), rotary member (22) on being used to make axle (24) and be placed in described axle is connected antitorquely, wherein said clutch assembly (30) has: gear shift sleeve (34), described gear shift sleeve is connected with described axle (24) antitorquely, and settles and be equipped with first gear teeth (38) in the axial direction movably with respect to described axle (24); Clutch body (40), described clutch body is connected with described rotary member (22) antitorquely and is equipped with second gear teeth (42), for described axle (24) is connected with described rotary member (22) antitorquely, described second gear teeth can mesh with described first gear teeth (38); And locking-synchronizer, described locking-synchronizer has the rubbing surface of having, (46) synchronizing ring, (44), by means of described synchronizing ring, described first and described second gear teeth, (38,42) before the engagement, described axle, (24) and described rotary member, (22) rotating speed can be synchronous, wherein said locking-synchronizer also has locking body, (50), described locking body and described gear shift sleeve, (34) pass through locking slot, (52) connection and described locking body and described synchronizing ring, (44) in sense of rotation, (D) upward face by locking, (70) connect
It is characterized in that,
Described locking is formed between described locking body (50) and the lockout member (54) in the face of (70), and described lockout member goes up at axial direction (A) and is connected with described locking body (50) and upward is connected with described synchronizing ring (62) in sense of rotation (D).
2. clutch assembly according to claim 1, it is characterized in that, described lockout member (54) goes up with respect to the guide pin bushing (32) that is connected with described axle (24) restricted ground arrangement movably between release position (F) and locked position of coupler (S) in sense of rotation (D), thereby makes described lockout member (54) prevent on described locked position of coupler (S) that described locking body (50) from shifting out from described locking slot (52) and so prevented moving axially of described gear shift sleeve (34).
3. clutch assembly according to claim 1 and 2 is characterized in that, described synchronizing ring (44) have groove (62 "; 62 " '), the internal placement of described groove have described lockout member (54) portion's section (60 "; 60 " ') be connected on sense of rotation (D) with described synchronizing ring (44) being used for.
4. clutch assembly according to claim 3 is characterized in that, the described groove of described synchronizing ring (44) (62 "; 62 " ') be designed to axial groove.
5. according to each described clutch assembly in the claim 1 to 3, it is characterized in that described synchronizing ring (44) has protuberance (62; 62 '), described protuberance engages into the groove (60 of described lockout member (54); 60 ') in be connected on sense of rotation (D) with described lockout member (54) being used for.
6. according to each is described or according to the clutch assembly as described in the preamble of claim 1 in the claim 1 to 5, it is characterized in that described locking body (50) is gone up at described gear shift sleeve (34) at axial direction (A) and gone up guiding.
7. clutch assembly according to claim 6 is characterized in that, described gear shift sleeve (34) has groove (53) radially, and described locking body (50) axially leads in described groove radially.
8. according to claim 6 or 7 described clutch assemblies, it is characterized in that, described locking body has at least one guide protrusion part (118), and described guide protrusion part engages in the teeth groove of described first gear teeth (38) to be used for carrying out axial guiding on described gear shift sleeve (34).
9. according to each described clutch assembly in the claim 1 to 8, it is characterized in that described locking body (50) is gone up with respect to described axle (24) or described guide pin bushing (32) in radial direction (R) and flexibly applied prestressing force and be pressed in the described locking slot (52).
10. according to each described clutch assembly in the claim 1 to 9, it is characterized in that described locking body (50) is flexibly applied prestressing force with respect to described lockout member (54) and is pressed in the described locking slot (52) on radial direction (R).
11. clutch assembly according to claim 10 is characterized in that, described locking body (50) has groove (130) to be used to hold spring part (56), and described spring part is used for realizing flexibly applying prestressing force.
12., it is characterized in that described locking body (50) and described lockout member (54) are designed to a pre-assembled unit (112) according to each described clutch assembly in the claim 1 to 11.
13. clutch assembly according to claim 12 is characterized in that, described pre-assembled unit (112) has spring assembly (56) to be used to making described locking body (50) flexibly apply prestressing force with respect to described lockout member (54).
14., it is characterized in that described locking body (50) and/or described lockout member (54) are designed to sintered component according to each described clutch assembly in the claim 1 to 13.
15. according to each described clutch assembly in the claim 1 to 14, it is characterized in that, described lockout member (54 " '; 54
IV) be designed to bent plate spare.
16., it is characterized in that described locking slot (52) has latch surfaces (122) and the inclined-plane (124) on the transition part from described latch surfaces (122) to described first gear teeth (38) according to each described clutch assembly in the claim 1 to 15.
17. according to each described clutch assembly in the claim 1 to 16, it is characterized in that a plurality of locking-synchronizers, described locking-synchronizer has locking body (50) and lockout member (54) and these described locking-synchronizers respectively and arranges dispersedly on the circumference of described clutch assembly.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007010307.9 | 2007-02-22 | ||
| DE102007010307A DE102007010307B3 (en) | 2007-02-22 | 2007-02-22 | Clutch arrangement for torque-proof connection of shaft with rotating unit i.e. idler, for transmission of motor vehicle, has locking surface pair coupled in axial direction with locking unit and in rotary direction with synchronous ring |
| PCT/EP2008/001445 WO2008101729A2 (en) | 2007-02-22 | 2008-02-22 | Clutch assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101675262A true CN101675262A (en) | 2010-03-17 |
| CN101675262B CN101675262B (en) | 2012-12-26 |
Family
ID=39339196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008800059120A Expired - Fee Related CN101675262B (en) | 2007-02-22 | 2008-02-22 | Clutch assembly |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8511451B2 (en) |
| EP (1) | EP2137423B1 (en) |
| KR (1) | KR101417177B1 (en) |
| CN (1) | CN101675262B (en) |
| AT (1) | ATE513145T1 (en) |
| DE (1) | DE102007010307B3 (en) |
| WO (1) | WO2008101729A2 (en) |
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- 2008-02-22 WO PCT/EP2008/001445 patent/WO2008101729A2/en active Application Filing
- 2008-02-22 KR KR1020097019805A patent/KR101417177B1/en active IP Right Grant
- 2008-02-22 EP EP08715996A patent/EP2137423B1/en not_active Not-in-force
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| CN103899672A (en) * | 2014-04-08 | 2014-07-02 | 天津天海同步科技股份有限公司 | Intelligent slider synchronizing device |
| CN105090269A (en) * | 2014-05-19 | 2015-11-25 | 福特全球技术公司 | Synchronizing device |
| CN105090269B (en) * | 2014-05-19 | 2019-09-24 | 福特全球技术公司 | Synchronizing device |
| CN106337886A (en) * | 2015-07-11 | 2017-01-18 | 通用汽车环球科技运作有限责任公司 | Synchronizer |
| CN108691916A (en) * | 2017-04-07 | 2018-10-23 | 贺尔碧格传动技术控股有限公司 | Synchronization Component with centering face |
| CN108691916B (en) * | 2017-04-07 | 2021-06-29 | 贺尔碧格传动技术控股有限公司 | Synchronizing assembly with centering surface |
| CN112005023A (en) * | 2018-03-29 | 2020-11-27 | 欧瑞康摩擦系统（德国）有限责任公司 | Space optimized synchronizer design |
| CN112005023B (en) * | 2018-03-29 | 2022-05-17 | 欧瑞康摩擦系统（德国）有限责任公司 | Space optimized synchronizer design |
| CN113738784A (en) * | 2021-09-18 | 2021-12-03 | 浙江迅达工业科技有限公司 | DCT automobile synchronizer |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101417177B1 (en) | 2014-07-08 |
| US20100078283A1 (en) | 2010-04-01 |
| US8511451B2 (en) | 2013-08-20 |
| WO2008101729A3 (en) | 2009-12-03 |
| KR20090127141A (en) | 2009-12-09 |
| EP2137423A2 (en) | 2009-12-30 |
| EP2137423B1 (en) | 2011-06-15 |
| WO2008101729A2 (en) | 2008-08-28 |
| CN101675262B (en) | 2012-12-26 |
| DE102007010307B3 (en) | 2008-06-05 |
| ATE513145T1 (en) | 2011-07-15 |
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